| Pittsburgh to Prokuplje | 4,873.76 mi (7,843.56 km) |
| Pittsburgh to Raca | 4,807.89 mi (7,737.55 km) |
| Pittsburgh to Raska | 4,832.58 mi (7,777.28 km) |
| Pittsburgh to Razanj | 4,854.05 mi (7,811.85 km) |
| Pittsburgh to Rekovac | 4,829.15 mi (7,771.76 km) |
| Pittsburgh to Ruma | 4,730.89 mi (7,613.63 km) |
| Pittsburgh to Sabac | 4,735.37 mi (7,620.84 km) |
| Pittsburgh to Secanj | 4,752.61 mi (7,648.58 km) |
| Pittsburgh to Senta | 4,702.92 mi (7,568.62 km) |
| Pittsburgh to Sid | 4,702.47 mi (7,567.90 km) |
| Pittsburgh to Sjenica | 4,808.91 mi (7,739.19 km) |
| Pittsburgh to Smederevo | 4,787.85 mi (7,705.30 km) |
| Pittsburgh to Smederevska Palanka | 4,801.41 mi (7,727.13 km) |
| Pittsburgh to Sokobanja | 4,867.29 mi (7,833.14 km) |
| Pittsburgh to Sombor | 4,670.97 mi (7,517.19 km) |
